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Finding the Fourth Proportional to 157,872.89, 236,811.42 and 52,691.82

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Solution

The fourth proportional to 157,872.89, 236,811.42 and 52,691.82 is: 79,038.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,872.89 : 236,811.42 = 52,691.82 : x
  2. Step 2: Convert to fraction form
    157,872.89/236,811.42 = 52,691.82/x
  3. Step 3: Cross multiply
    157,872.89x = 236,811.42 × 52,691.82
  4. Step 4: Simplify right side
    157,872.89x = 12,478,024,716.58
  5. Step 5: Solve for x
    x = 12,478,024,716.58/157,872.89
  6. Step 6: Final answer
    x = 79,038.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.